> I guess my question is: why do you think I am throwing
> away a result which you only accomplish differently?
> "++" vs. "+ 1" -- they both add one to the value
> of $flip.

Um, no, they do not. Saying 
$flip + 1;

[download]
does not change in any way the scalar referred to by $flip, while "++$flip" does. Simple as that.

===
What, fundamentally, is the difference between 
  $flip = ++$flip % 4
        and 
  $flip = ($flip + 1) % 4
===
The first changes the value of $flip twice, the second, only once. In the first one, the computer is saying:
  1. Increase the value of $flip by one
  2. Modulo 4 it
  3. Assign the result into $flip
versus:
  1. Compute the value of $flip + 1
  2. Modulo for that (temporary) value
  3. Assign the result into $flip

In reply to RE: RE(2): Flipper (Maintainability vs. personal style?) by turnstep
in thread Flipper by Russ

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